mirror of
https://github.com/rbock/sqlpp11.git
synced 2024-11-16 12:51:13 +08:00
91 lines
4.4 KiB
C++
91 lines
4.4 KiB
C++
/*
|
|
* Copyright (c) 2016-2022, Roland Bock
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
|
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
|
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "Sample.h"
|
|
#include "compare.h"
|
|
#include <sqlpp11/sqlpp11.h>
|
|
|
|
#include <iostream>
|
|
|
|
SQLPP_ALIAS_PROVIDER(pragma)
|
|
|
|
int CustomQuery(int, char*[])
|
|
{
|
|
const auto foo = test::TabFoo{};
|
|
const auto bar = test::TabBar{};
|
|
|
|
// Unconditionally
|
|
compare(__LINE__,
|
|
custom_query(sqlpp::select(), select_flags(sqlpp::distinct), select_columns(foo.doubleN), from(foo),
|
|
sqlpp::unconditionally()),
|
|
"SELECT DISTINCT tab_foo.double_n FROM tab_foo ");
|
|
|
|
// A full select statement made individual clauses
|
|
compare(__LINE__,
|
|
custom_query(sqlpp::select(), select_flags(sqlpp::distinct), select_columns(foo.doubleN),
|
|
from(foo.join(bar).on(foo.doubleN == bar.id)), where(bar.id > 17), group_by(foo.doubleN),
|
|
having(avg(bar.id) > 19), order_by(foo.doubleN.asc()), sqlpp::limit(10u), sqlpp::offset(100u)),
|
|
"SELECT DISTINCT tab_foo.double_n FROM tab_foo INNER JOIN tab_bar ON (tab_foo.double_n=tab_bar.id) WHERE "
|
|
"(tab_bar.id>17) GROUP BY tab_foo.double_n HAVING (AVG(tab_bar.id)>19) ORDER BY tab_foo.double_n ASC "
|
|
"LIMIT 10 OFFSET 100");
|
|
|
|
// A full select statement made individual clauses
|
|
compare(
|
|
__LINE__,
|
|
custom_query(sqlpp::select(), select_flags(sqlpp::distinct), select_columns(foo.doubleN),
|
|
from(foo.join(bar).on(foo.doubleN == bar.id)), where(bar.id > 17),
|
|
group_by(foo.doubleN), having(avg(bar.id) > 19),
|
|
order_by(foo.doubleN.asc(), foo.uIntN.order(sqlpp::sort_type::desc)),
|
|
sqlpp::limit(7u), sqlpp::offset(3u)),
|
|
"SELECT DISTINCT tab_foo.double_n FROM tab_foo INNER JOIN tab_bar ON (tab_foo.double_n=tab_bar.id) WHERE "
|
|
"(tab_bar.id>17) GROUP BY tab_foo.double_n HAVING (AVG(tab_bar.id)>19) ORDER BY tab_foo.double_n "
|
|
"ASC,tab_foo.u_int_n DESC LIMIT 7 OFFSET 3");
|
|
|
|
// A pragma query for sqlite
|
|
compare(__LINE__,
|
|
custom_query(sqlpp::verbatim("PRAGMA user_version")).with_result_type_of(select(sqlpp::value(1).as(pragma))),
|
|
" PRAGMA user_version");
|
|
|
|
// An insert from select for postgresql
|
|
const auto x = 17;
|
|
compare(__LINE__,
|
|
custom_query(insert_into(foo).columns(foo.doubleN),
|
|
select(sqlpp::value(x).as(foo.doubleN))
|
|
.from(foo)
|
|
.where(not exists(select(foo.doubleN).from(foo).where(foo.doubleN == x)))),
|
|
"INSERT INTO tab_foo (double_n) "
|
|
"SELECT 17 AS double_n FROM tab_foo "
|
|
"WHERE (NOT EXISTS(SELECT tab_foo.double_n FROM tab_foo WHERE (tab_foo.double_n=17)))");
|
|
|
|
// A multi-row "insert or ignore"
|
|
auto batch = insert_columns(bar.textN, bar.boolNn);
|
|
batch.add_values(bar.textN = "sample", bar.boolNn = true);
|
|
batch.add_values(bar.textN = "ample", bar.boolNn = false);
|
|
compare(__LINE__, custom_query(sqlpp::insert(), sqlpp::verbatim(" OR IGNORE"), into(bar), batch),
|
|
"INSERT OR IGNORE INTO tab_bar (text_n,bool_nn) VALUES ('sample',1),('ample',0)");
|
|
|
|
return 0;
|
|
}
|